Winding device



V.YE. EXIROM; WINDING DEVICE. APPLlc'AUoN FILED ocT 19, 1920.

. Patented June 13,1922.

2 SHEETS-SHEET I.

WINESSES ZM V. E. EXTROM.

wlNnlNG DEVICE.

WITNESSES al t@ er rica.,

WINDING nnvion.

specification of Letters Patent.

Patented June 1.3, 1922.

Application filed October 19, 1920. Serial No. 417,935.

To @ZZ whom t may concern.:

Be it known that l, Vieron E. EXTROM, a citizen of the United States,and resident of Fulda, in the county of Murray and State of Minnesota,have invented a new` and lmproved TWinding Device, ot whichy thefollowing is a. full, clear, and exact description.

My invention relates to a motor, and more particularly to a Fixture ofthis nature, which is adapted for use in connection with wind-y ingspring motors, `such as are used with clocks, but not necessarilylimited to this adaption. 1

l aim to provide a winding device which shall be electrically operated,and which motor shall at all times insure a tensioning of the spring ofal mechanical motor, upon the same becoming unwound, and a cessation ofsaid tensioning 'function upon the'spring having been tensioned to apredetermined point.

This adaption is merely taken by way of example, as my improvedconstruction might readily be adapted for a number of other differentuses than that of tensioning the spring of a spring motor, although asaforestated, this is particularly adapted for this use.

A further object of my invention is the construction of a device of thisnature, which shall be entirely automatic, and require a minimum ofsurveillance, and in which the parts shall be simple, and henceeconomical to manufacture, and positive in operation.

Reference is had to the attached sheet of drawings as illustrating apractical embodiment oi my invention, and in which- Figure 1 is a Yfrontview oi a device of the nature specified, constructed in accordance withmy invention.

lligure 2 is a side view thereof,

Figure 3 is a partly iliragmentary tace view Vot the construction of amechanical motor,

and showing certain details of my invention as associated therewith. Y

Figure 4e is a sectional side view taken of certain parts oi my improvedmotor, and the spring motor -which is shown associated therewith, and

Figure 5 illustrates a detail of construction ot' my motor.

In these views the reference numeral 10 indicates the supporting walls,which may form a part of a housing adapted to contain mechanism, such asfor instance a train of ythe shaft 13,. wardly extending element 16 issecured to tending beyond the housing.

It is now to be noted that the shaft 13 has a disk or other suitable'element 14 keyed to 4the same, as has been indicated by the referencenumeral 15. Thus, upon the disk 14 being rotated, a rotation will beimparted to A pin, or other suitable outthe disk 14, and adjacent theoutervedge of the same, and it will be seen. that in the embodimentillustrated, that one end of a spring 17'may be secured to this pin,theopposite end of said spring being aixed to a sleeve, or a collar 18,which latter is freely rotatable upon the shaft 18.

Assuming now that the collar 18 is held against rotation, and that thecoils of the spring 17 have had a certain tension imparted to them, itwill be understood that this tensioning willv result in a force beingexerted, upon the pin 16, resulting, as aforestated in a rotation of thedisk, shaft and gear wheel, or other element 12.

To now provide means, which will serve to prevent a rotation of thecollar 1S, it will be seen that l have utilized a second-disk, or othersuitable element 19, which latter is aflixed to the collar 18, `and'preferably adjacent the outer end of the same.

This latter disk is conveniently formed vwith an annular series ofratchet teeth 20, in its outer edge, which teeth are adapted to beengaged with a-pawl 21, to prevent in the form shown, any clockwisemotion on the part ci the disk 19 whereby any rotation of the collar 18is prevented.

To effect the tensioning of the springs 17, l rotate in thedevice'illustrated, a disk 19, in an anti-clocl:wise direction. Toautomatkically cl'liect this, I conveniently a'tlix a solenoid 22 to thesupporting walls 10, and rotatably mount as at 23, an armature 2st preterably of the type illustrated in Figure 5, which includes a U shapedbod7 portieri, and which armature is adapted to coeact with the solenoidin a manner hereinafter more fully specified. Y

A spring pressed dog25 is secured to the armature 241, and engages theteethl 20 of the disk 19. Obviously upon the armature being oscillatedaround its point of support, 23, it will be seen that the pawl 25 willengage one of the teeth 20, and upon the rock- -2/1'ro'm which it is ingmotion being continued, Will serve to move the teeth which it hasengaged, a certain distance in an anti-clockwise direction. This advanceofthe disk 19 will be retained by the pavvl 21, and a rocking in anopposite direction on the part of the armature 24 will cause the pawl 25to override one or more teeth 20, before itreaches the end of itsstroke, subsequent to which the direction of movement of the armaturewill be reversed, to again 'feed the-disk inlan anti-clockwisedirection. Y Y

To effect an oscillation of the armaturer211, a suitable sourceof energy(not shown) connects with the terminals 26 and 29, one oi'the terminalsbeing connected to the windings of the solenoid 22, a secondfterminalbeing connectedl toa-n kadjustable contact pin 27. Acont'act member 28,bears with one of its ends against the outer end oi? the pin 27, itsopposite end being secured to the armature suitably insulated, as hasbeen indicated by the reference .numeral 29.

Aleadwire 30,' extends'froin the contact member 28, and affordselectrical connectionV Withithe windings ot the solenoid 22, thuscompleting the circuit'. The completion-of this circuity will, as mayreadily be appreciated, effect an attraction off thearmature tothesolenoid, causingthe same to rock to la position at which it @verliesthe solenoid, thus effecting airetractioni of the paw'l 25 in thermanner specilied. bviously, the contact kmemberf`28 will move with theAarmature 24, and it will be appreciated, thatl although the circuitwill be completed, and an attraetion of the armature etlieicted in theposition oit the parts illustrated 4in Figure 1, that upon thisattraction taking place, that the circuit willbebroken, incident to thecontact member 28 moving outr oi engagement with the contact pin `27.

To return the parts to their normal position, that' is, the positionindicated in lull lines in Figure 1, a spring strip 31 will be bowedupon an attraction oiilthe Y armature being eiiecte'd, and will tend tothrow the armature back to its normal position, which action Will bepermitted upon the armature rocking in thel structure illustrated in thedrawings', in an. anti-clockwise direction, thus breaking, asa'liorestated, the contact between the' elements 27v and 2S.

Thus',a'n oscillation of the armature2l1 will'be produced, which Iwillresult in a rotation ofthe disk l19, anda tensioning or the springs 17;To now provide a medium which willre'gulate'the amount of unwinding, andretensioning of the convolutions of the'spring 171, I conveniently7mount a third disk 33, upon the collar 18', it being notedthatthislatter disk is-refely rotatable upon this member.

-pin-Seis'secured to thisdisk, and it is tobe'noted' that this pinA orobstruction is departing has formed in its periphery, a plurality ofinclined shoulders 37,

which may be brought to bear against one.

arm of the bell crank 35. Now assuming that the spring 17 is to bewound, the parts being in the position indicated in Figures 1 and 2, itwill be Yunderstood that the disk 19 willbe actuated in the mannerspecified, to tension the spring 17. Y

rIhe disk 19, carryingthe-- pin' 35, will eventually rotate the disk33,r for the reason that this pin. will engage the pin't o1* the latterdisk. The rotationot the' diskwill result in one of the shoulders m'tacting, after the disk has moved to acertain distance, `with one`arnro'lE the bell crank lever 36, thus rocking the same.

W hen vthis occurs, the sccondarin oli the bell crank lever 3G will bearagainst the rcontactmember 28 thus movingthe same out-o1` contact withthe pin 27 and breaking the circuit, obviously resulting ina cessationof the winding operation.

The spring will now unwind carryino` the disk 14- andpin 16 vwith it.Uponthe latter moving to a pointad]- acent the pin 3-1 of the disk 38,this member` will be moved, consequently `moving the associated disk,which will result in the shoulder being` moved passed the bell crank 3G,thus permitting the contact member 28 to again bear against the `pin 27,completing the circuit.

Thus I have provided a motor, more particularly adapted to use inconnection with a spring motor, and for tensioning the spring ofi thelatter, but not necessarily limited to this particular use.

This motor, as will readily be appreciated, is extremely simple inconstructionand. positive in operation, so as to require a minimum olexpenditure 'for the original oscillation as well as subsequent upkeep.

It will also be understood thatobviously numerous modifications ofstructure might readily be resorted to without in the least from thespirit of my invention which I claim as p 1; A motor including incombination with a shaft and spring having one of its ends attached tosaid sha-ft to effectk av rotation thereof, of a collar rotatablyencircling said shaft' andhaving the opp site end of said springconnected thereto, a disk secured4 to said collar, a plurality o'l teethforming a part of said disk and being, arranged at or con- Ysubstantially diametrically opposite points in the periphery thereof, asecondary disk secured to said collar, teeth forming said secondarydisk, a pawl adapted to engage said latter teeth, means for effecting apro-- jection and retraction of said paWl to rotate said disk andcollar, and means adapted to be engaged by the teeth of the first nameddisk for causing a cessation of operation of said paWl. f 2. A motorincluding in combinationv With a shaft and spring, said spring havingone of its ends connected to said shaft, of a collar rotatablyencircling said shaft the opposite end of said spring being connected tosaid collar, a disk secured to said collar, a secondary disk alsoattached to the same, a solenoid, an armature, one of said elementsbeing movable, a pavvl connected'to said movable element and adapted toengage teeth formed in said last named disk, a contact member, a contactpin adapted to be engaged by the outer end of said member, said memberbeing attached to said movable element and in circuit with said solenoidwhereby to cause an attraction of said armature by said solenoid, aspring also attached to said movable member for returning the same toits normal position When the circuit is broken and means adapted tocooperate With said contact member for moving the same out of engagementWith said pin when the collar has been rotated by means of said paWl toa predetermined position.

3. A motor including in combination with a shaft and spring, said springhaving one of its ends connected to said shaft, of a collar rotatablyencircling said shaft the opposite end of said spring being connected tosaid collar, a disk secured to said collar, a secondary disk alsoattached to the same, a solenoid, an armature, one of said elementsbeing movable, a pawl connected to said movable element and adapted toengage teeth formed in said last named disk, a contact member, a contactpin adapted to be engaged by the outer end of said member, saidmemberbeing attached to said movable element and in circuit with said solenoidwhereby to cause an attraction of said armature by said solenoid, aspring also attached to said movable member for returning the same toits normal position When the circuit is broken, and means carried bysaid first named disk for causing said contact member to be moved out ofengagement with said pin when the collar has been rotated to apredetermined point.

Li. A motor including in combination with a shaft and spring, saidspring having one of its ends connected to said shaft, of a collarrotatably encircling said shaft the opposite end of said spring beingconnected to said collar, a disk secured to said collar,

a secondary disk also attached to the same, a solenoid, an armature, oneof said elements being movable, a paWl connected to said movable elementand adapted to engage teeth formed in said last named disk, a contactmember, a contact pin adapted to be engaged by the outer end of saidmember, said member being attached to said movable element and incircuit with said solenoid whereby to cause an attraction of saidarmature by said solenoid, a spring alsov attached to said movablemember for returning the same to its normal position When the circuit isbroken, a bell crank having one of its arms lying adjacent said member,and means carried byione of said disks for engaging the second arm ofsaid bell crank to move said member out of engagement With said pin.

5. A motor including in combination with a shaft and spring, said springhaving one of its ends connected to said shaft, of a collar rotatablyencircling said shaft the Aopposite end of said spring being connectedto said collar, a disk secured to said collar, a secondary disk alsoattached to the same, a solenoid, an armature, one of said elementsbeing movable, a pa-Wl connected to said movable elementand adapted toengage teeth formed in said last named disk, a contact member, a contactpin adapted to be engaged by the outer end of said member, said memberbeing attached to said movable element and in circuit with saidsolenoid, whereby to cause an attraction of said armature by saidsolenoid, a spring also attached to said movable member for returningthe'same to its normal position When the circuit is broken, and meansadapted to be operated by one of said disks for moving 'said member outof engagement With said pin when said collar has been rotated to apredetermined extent.

6. A motor including in combination With a shaft and spring, said springhaving one of its ends connected to said shaft, of a collar rotatablyencircling said. shaft the opposite end of said spring being connectedto said collar, a disk secured to said collar, a secondary disk alsoattached to the same, a

solenoid., an armature, one of said elements being movable, a paWlconnected to said movable element and adapted to engage 'teeth formed insaid last named disk, a contact member, a contact pin adapted to beengaged bythe outer end of said member, said member being attached tosaid movable element and in circuit with said solenoid, whereby to causean attraction of said armature by said solenoid, a spring also attachedto said movable member for returning the same to its normal positionWhen the circuit is broken, the first named disk being also formed Withteeth, a bell crank having one of its arms lying adjacent said member:its .opposite arm y.exten-ding into the path ofV travel of the. lastnamed teeth whereby upon said' disk havingv beenv rotated to apredetermined extent one of said teeth will bear against the. arm offthebell crank tolcause the secondtarm of: the same to moveinto contact withsaid member, to in turn move saidmember, out of engage'- ment withvsaidpin.

7. .ln al motor, including in` combina-tion 'withashafa and aispring fordrivingsaid shaft: havingone of: its ends secured to the sleeve ot acollar. rotatably mounted4 upon saidshaft, afdisksecuredto said collar,said diskl being formed with ratchet teeth, to-

gether: with an armature, and a solenoid,

meansfor permitting a flow of current to elieetf an attraction of saidarmature-with respect to said solenoid, means `for returningsaid?armaturer to its .normal position, and a pawl securedto saidvarmature and-adapted to en gage the: ratchet? teeth otsai d diskx 8. A*motor, .including in combination with having one ot its endssecuredito-the sleeve of a collar rotatably mountedy uponl said shaft,afdisk securedito `said collar, saididisk being formed with'l ratchetteeth together withian aanature, anda solenoid, a contact membersecuredto `said armature, a resilient strip also `secured to saidarmature, .a contact pin, said contact member being adapted to bearagainst said contact. pin,. a .bearing member, said resilientE stripbeing adapted to engage said bearing'member-,said solenoidfbeingarranged in circuit and continuing throughV the 'contact member and pin,a pawl secured to said1armature and'adapted to engage'the teeth of saiddisk, said armature moving upon the aforespecified circuit being closed,to a pointf adjacent said sole! neid, whereby saide contact membercarried by said armature will. move out of contact with said pin tobreak the circuit, saldresilient' strip returning said armature sub-`sequently to its normal position, whereby to move said disk and'collar.

9. A motor, including in combination with a shaft, .and a spring lorfdriving said shalt havingI one o'f its ends secured to the-sleeve ot' acollar rotatably mounted upon: said shaft, a disk securedto said collar,vsaid disk being formed' with ratchet teeth together withfan armature,and a solenoid, a Contact member securedto said armature, a resilientstrip also securedto said armature, a contact pin, said' contact memberbeing adapted to bearv against said contact pin, a bearing member, saidresilient strip being adapted to engage saidi bearing member, saidwsolenoid normal y position for driving said shaft `adapted to` engagemoving upon the a'liorespecilied circuit being closed to a pointadjacent said solenoid,

whereby. said contact member carried by said armature willmoveout-otcontactvv with said pinito returning said armature subsequently toits and collar,l andmeans operatedby saiddisk for. breaking the circuitupon the spring bein tensioned to apredetermined point.

10A. motor, includingv in combination with ashaft and a spring fordriving Vsaid shaft having one of: its ends secured'tothe Y sleeve ot acollar rotatably mounted. upon saidsha'lft', a disk.securedito saidcollar, said disk being formed with ratchet. teeth together with anarniature,'fand.a solenoid," a contactmeniber secured to saidlarmature,a resilient strip also securedto saidarmature, a contact pin, said:contact inemberfpbeing adapted tobearv against; said=contact pin, a

bearing meniber,.said resilient strip being adapted to engage. said.bearing member, saidsolenoidfbeing arranged in circuit Vand continuingth rough the contact: member and pim'. a pawl' secured toy saidVarmaturel and v :the teethI of said. disk, said armature moving uponthea'fore speciiiedlcircuit being closedftoa pointJ adjacent saidsolenoid, whereby said contactrmember carried by said armature will moveout et Contact with saidpin tobreak the circuit7 saidI resilientv stripreturning said armature subsequently kto itsv norm al position wherebyto move said; disk and collar,. and means operated by` saidv disk, torvbreaking the eircuitv upon the spring being tensioned tov apredetermined' peint, and. further means `operated by said spring iorclosing the cir.-

cuit upony the spring'reachingA a predetermined point of: exhaustion oftension.

111.. A motor, including a rotatable shaft, a disk secured to-saidshatt,.aaspring, a pin secured to saidl disk and oner end oli thespring, ai collar rot: ably mounted. upon said shatt,.the oppositefendo'l said*spring being securedito said collar, disk secured to sai-dcollar,

a tli i rd t di sk .rotatably mounted upon.y said collar, pins securedto saidlast namedidisks, andi'niline with eachother and the first nameddisk,.andmeansoperatedby -said last. named disk 'for effecting arotation Vot theV second disk, and consequential tensioning ot saidspring VIGTGR EMANUEL EXTROM.

break the circuit, said resilient strip whereby to move said disk'

